That was tennis at the 1920 Games in Antwerp. Ichiya Kumagai won the silver medal.
The website for DatabaseOlympics gives information on Portugal's Olympic athletes.Specifically, the first screen for Portugal lists the sport and the number of each medals for that sport (gold, silver, bronze). Selecting the sport opens a window that gives the year/specific event/athlete/result/medal for that sport. Selecting the athlete's name from that window opens another window that lists all years that the athlete medalled, along with the athlete's age for each year, each sport, each specific event, each medal, and all results.
Jessica Ennis
Through the 2008 Games in Beijing, no athlete from Bolivia has won an Olympic medal.
Jim Torpe was the first duel sport athlete ...
Women's boxing
The first Olympic medal was awarded in 1988, but taekwondo was a demonstration sport. Taekwondo became a medal sport in 2000; however, they also hand out medals at the world championships, and the first world championships were in 1972.
pie eating race
Tennis has been included for the first time at the common wealth games 2010 as a medal sports in India.
Trampolining
Men's football was a demonstration sport at the 1896 Games in Athens and became a medal sport at the 1900 Games in Paris. Great Britain won the first gold medal. Women's football became a medal sport at the 1996 Games in Atlanta. The United States won the first gold medal in women's football.
Hamish Carter won the gold medal in Athens, 2004; he finished 26th in Sydney, in 2000. The triathlon was introduced as an Olympic sport, in 2000, in Athens.